Why the buttons are out of function when the first click, however they reaction normally when the second click.
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using TMPro;
using UnityEngine.UI;
public class Quiz : MonoBehaviour
{
[Header("Quiz")]
[SerializeField] TextMeshProUGUI QuestionText;
[SerializeField] QuizDataController QuizData;
[Header("Button")]
[SerializeField] Sprite DefaultButtonImage;
[SerializeField] Sprite CorrectButtomImage;
[SerializeField] GameObject[] AnswerButton;
[Header("Timer")]
Timer Timer;
[SerializeField] Image TimerImage;
void Start()
{
DisplayQuestion();
//LoadNewQuestion();
Timer = FindObjectOfType<Timer>(); //引用 scrpit Timer
}
void Update()
{
TimerImage.fillAmount = Timer.FillFraction;
if(Timer.LoadNextQuestion)
{
LoadNewQuestion();
Timer.LoadNextQuestion = false;
}
}
void DisplayQuestion()
{
QuestionText.text = QuizData.GetQuizText();
ChangeAnswerButtonText(AnswerButton.Length);
}
void ChangeAnswerButtonText(int index)
{
for(int i=0; i<index ; i++)
{
AnswerButton[i].GetComponentInChildren<TextMeshProUGUI>().text=QuizData.GetQuizAnwser(i);
}
}
public void OnAnswerSelected( int index)
{
DiplayAnswer(index);
ButtonState(false);
Timer.EndTiming();//After I added this script the bug begin.
}
void DiplayAnswer(int index)
{
Image ButtonImage;
int GetCorrectAnswerIndex = QuizData.GetCorrectAnswerIndex();
if(index == GetCorrectAnswerIndex)
{
QuestionText.text = "Correct!!";
ButtonImage = AnswerButton[index].GetComponent<Image>();
ButtonImage.sprite = CorrectButtomImage;
}
else
{
QuestionText.text = $"Wrong!! The anwser is \n { AnswerButton[GetCorrectAnswerIndex].GetComponentInChildren<TextMeshProUGUI>().text} ";
ButtonImage = AnswerButton[GetCorrectAnswerIndex].GetComponent<Image>();
ButtonImage.sprite = CorrectButtomImage;
}
}
void LoadNewQuestion()
{
ButtonState(true);
SetDefaultButtonSprites();
DisplayQuestion();
}
void ButtonState(bool State)
{
for(int i=0; i<AnswerButton.Length;i++)
{
AnswerButton[i].GetComponent<Button>().interactable = State;
}
}
void SetDefaultButtonSprites()
{
for (int i = 0 ; i<AnswerButton.Length; i++)
{
AnswerButton[i].GetComponent<Image>().sprite = DefaultButtonImage;
}
}
}
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class Timer : MonoBehaviour
{
[SerializeField] float AnsweringTime = 15f;
[SerializeField] float ShowAnswerTime = 5f;
float Timing;
public bool IsAnserQuestion = false;
public float FillFraction;
public bool LoadNextQuestion;
void Update()
{
UpdateTimer();
}
void UpdateTimer()
{
Timing -= Time.deltaTime; // Timing = Timing - Time.deltaTime
if(Timing <= 0 && !IsAnserQuestion )
{
Timing = AnsweringTime;
IsAnserQuestion = true;
}
else if (Timing <=0 && IsAnserQuestion)
{
Timing = ShowAnswerTime;
IsAnserQuestion = false;
LoadNextQuestion = true;
}
else if(Timing > 0 && IsAnserQuestion)
{
FillFraction = Timing/AnsweringTime;
}
else if(Timing > 0 && !IsAnserQuestion)
{
FillFraction = Timing /ShowAnswerTime;
}
//Debug.Log(IsAnserQuestion+":"+FillFraction+"/"+Timing);
}
public void EndTiming()
{
Timing = 0;
}
}
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
[CreateAssetMenu(menuName = “Create New Quiz”, fileName = “New Quiz”)]
public class QuizDataController : ScriptableObject
{
[TextArea(2,6)][SerializeField]string Quiz = "Type your Quiz";
[SerializeField] string [] QuizAnswer = new string[4] ;
[SerializeField] int CorrectAnswerIndex;
public string GetQuizText()
{
return Quiz;
}
public int GetCorrectAnswerIndex()
{
return CorrectAnswerIndex;
}
public string GetQuizAnwser(int Index)
{
return QuizAnswer[Index];
}
}
The flim for reference
Hi @NI_You,
Welcome to our community! 
Is there an EventSystem in your Hierarchy? If not, add one.
See also:
- Forum User Guides : How to mark a topic as solved
I found out the issue was because I load new question in the wrong timing.
I revised it as following:
void UpdateTimer()
{
TimingValue -= Time.deltaTime; // Timing = Timing - Time.deltaTime
if(TimingValue <= 0 && !HasAnswerQuestion)
{
LoadNextQuestion = true;
TimingValue = AnsweringTime;
HasAnswerQuestion = true;
}
else if (TimingValue <=0 && HasAnswerQuestion)
{
TimingValue = ShowAnswerTime;
HasAnswerQuestion = false;
//LoadNextQuestion = true; // wrong LoadNextQuestion Timing
}
else if(TimingValue > 0 && HasAnswerQuestion)
{
FillFraction = TimingValue/AnsweringTime;
}
else if(TimingValue > 0 && !HasAnswerQuestion)
{
FillFraction = TimingValue /ShowAnswerTime;
}
//Debug.Log(IsAnserQuestion+":"+FillFraction+"/"+Timing);
}Good job on solving the problem!
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